A manager wishes to predict the annual cost (y) of an automobile based on the number of miles (x) driven. The following model was developed:
y = $1500 + 0.36x.
If a car is driven 15000 miles in a year, the model predicts the annual cost of the car to be .

If a car is driven 15,000 miles in a year, the model predicts the annual cost of the car to be $ 6,900.

Step-by-step explanation:

The model developed is:

y = $ 1,500 + 0.36x, where:

y represents the annual cost of an automobile

x represents the number of miles driven

If x = 15,000, let's solve for y:

y = 1,500 + 0.36x

y = 1,500 + 0.36 * 15,000

y = 1,500 + 5,400

y = 6,900

d

step-by-step explanation:

d

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).